User Manual

Constellation.2 Serial ATA Product Manual, Rev. G 42
Note. See the bit descriptions below for words 63, 84, and 88 of the Identify Drive data.
100–103 Total number of user-addressable LBA sectors available (see Section 2.2
for related information). These words are required for drives that support
the 48-bit addressing feature. Maximum value: 0000FFFFFFFFFFFFh.
1000GB models = 1,953,525,168
500GB models = 976,773,168
250GB models = 488,397,168
104–107 ATA-reserved 0000
H
108–111 The mandatory value of the world wide name (WWN) for the drive.
NOTE: This field is valid if word 84, bit 8 is set to 1 indicating 64-bit WWN
support.
Each drive will have a unique value.
112–127 ATA-reserved 0000
H
128 Security status 0001
H
129–159 Seagate-reserved xxxx
H
160–254 ATA-reserved 0000
H
255 Integrity word xxA5
H
Description (if bit is set to 1)
Bit Word 63
0 Multiword DMA mode 0 is supported.
1 Multiword DMA mode 1 is supported.
2 Multiword DMA mode 2 is supported.
8 Multiword DMA mode 0 is currently active.
9 Multiword DMA mode 1 is currently active.
10 Multiword DMA mode 2 is currently active.
Bit Word 84
0 SMART error logging is supported.
1 SMART self-test is supported.
2 Media serial number is supported.
3 Media Card Pass Through Command feature set is supported.
4 Streaming feature set is supported.
5 GPL feature set is supported.
6 WRITE DMA FUA EXT and WRITE MULTIPLE FUA EXT commands are supported.
7 WRITE DMA QUEUED FUA EXT command is supported.
8 64-bit World Wide Name is supported.
9-10 Obsolete.
11-12 Reserved for TLC.
13 IDLE IMMEDIATE command with IUNLOAD feature is supported.
14 Shall be set to 1.
15 Shall be cleared to 0.
Bit Word 88
0 Ultra DMA mode 0 is supported.
Word Description Value